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$393+ Cheap flights from Ontario (ONT) to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FUK
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Ontario to Japan

Keep the following information in mind while searching for Ontario to Japan flight deals. Data was last updated July 3, 2025.

Round-trip from

$773
(Gurufare)

One-way from

$393
(Ovago)

Popular in

June

Cheapest in

February

Average price

$966
From Ontario to Japan
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One-way flight from Ontario to Japan
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Highest demand for flights based on searches. 13% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ontario to Japan

Cheapest flights from Ontario to Japan
Explore the most affordable flight options available from Ontario to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Kissandfly.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:00 amONT - HND
2 stops24h 50mKorean Air
Mon 9/82:00 amHND - ONT
2 stops36h 42mKorean Air
Deal found 7/2$774
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:10 amONT - NRT
2 stops18h 35mAmerican Airlines
Wed 9/176:10 pmNRT - ONT
2 stops20h 23mAmerican Airlines
Deal found 7/1$775
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:00 amONT - HND
1 stop16h 15mDelta
Tue 9/24:05 pmHND - ONT
1 stop34h 45mDelta
Deal found 7/3$776
This Ovago deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:00 amONT - NRT
2 stops23h 05mKorean Air
Mon 10/68:55 pmNRT - ONT
2 stops36h 22mKorean Air
Deal found 7/1$779
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:05 amONT - NRT
2 stops21h 30mDelta
Wed 9/102:00 pmNRT - ONT
2 stops24h 40mDelta
Deal found 7/1$782
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:10 pmONT - HND
2 stops23h 35mAmerican Airlines
Thu 9/184:25 pmHND - ONT
2 stops17h 47mAmerican Airlines
Deal found 7/2$786
This Ovago deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:00 amONT - NRT
1 stop17h 30mJapan Airlines
Tue 9/95:45 pmNRT - ONT
1 stop16h 51mJapan Airlines
Deal found 7/1$789
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/211:42 pmONT - HND
1 stop22h 48mUnited Airlines
Tue 9/239:55 pmHND - ONT
2 stops35h 34mUnited Airlines
Deal found 7/2$791
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:00 amONT - NGO
2 stops22h 50mKorean Air
Fri 9/121:40 pmNGO - ONT
2 stops25h 00mKorean Air
Deal found 7/2$803
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:45 amONT - FUK
2 stops37h 45mDelta
Thu 10/3010:30 amFUK - ONT
2 stops28h 12mDelta
Deal found 6/30$808
This Korean Air deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:45 amONT - FUK
2 stops39h 55mKorean Air
Thu 10/301:45 pmFUK - ONT
2 stops24h 57mKorean Air
Deal found 7/1$813
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:45 amONT - KIX
2 stops22h 15mDelta
Tue 10/2811:55 amKIX - ONT
2 stops26h 47mDelta
Deal found 7/2$816

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Ontario to Japan that are best for you.

Fly from

Ontario

Fly to

Japan

Route

Depart

Return

Price

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Tue 9/2

6:00 am-3:35 pm

1 stop17h 35m

Tokyo Narita

Tue 9/9

5:45 pm-6:36 pm

1 stop16h 51m

$769

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 8/24

6:00 am-10:50 pm

2 stops24h 50m

Tokyo Haneda

Mon 9/8

2:00 am-10:42 pm

2 stops36h 42m

$774

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 9/15

6:10 am-4:45 pm

2 stops18h 35m

Tokyo Narita

Wed 9/17

6:10 pm-10:33 pm

2 stops20h 23m

$775

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 8/26

6:00 am-2:15 pm

1 stop16h 15m

Tokyo Haneda

Tue 9/2

4:05 pm-10:50 am

1 stop34h 45m

$776

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 9/29

6:00 am-9:05 pm

2 stops23h 05m

Tokyo Narita

Mon 10/6

8:55 pm-5:17 pm

2 stops36h 22m

$779

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Tue 8/26

6:05 am-7:35 pm

2 stops21h 30m

Tokyo Narita

Wed 9/10

2:00 pm-10:40 pm

2 stops24h 40m

$782

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 9/9

1:10 pm-4:45 am

2 stops23h 35m

Tokyo Haneda

Thu 9/18

4:25 pm-6:12 pm

2 stops17h 47m

$786

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 9/21

1:42 pm-4:30 am

1 stop22h 48m

Tokyo Haneda

Tue 9/23

9:55 pm-5:29 pm

2 stops35h 34m

$791

OntarioNagoya

ONT - NGO

ONTNGO

Ontario

Mon 9/8

6:00 am-8:50 pm

2 stops22h 50m

Nagoya Chubu Centrair Intl

Fri 9/12

1:40 pm-10:40 pm

2 stops25h 00m

$803

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Sun 10/26

6:45 am-12:30 pm

2 stops37h 45m

Fukuoka

Thu 10/30

10:30 am-10:42 pm

2 stops28h 12m

$808

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Japan

What is the cheapest month to book a flight from Ontario to Japan?

Currently, February is the cheapest month in which you can book a flight from Ontario to Japan (average of $871). Flying from Ontario to Japan in December is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to JP?

Find hourly flight availability from Ontario to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Japan as you normally would.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated July 3, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and Korean Air from Ontario to Japan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
188 reviews

Entertainment

9.0

Crew

9.3

Food

8.9

Comfort

9.0

Boarding

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
188 reviews
STARLUX Airlines
9.0
Wonderful
188 reviews

Entertainment

9.0

Crew

9.3

Food

8.9

Comfort

9.0

Boarding

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,215 reviews
STARLUX Airlines
9.0
Wonderful
188 reviews

Entertainment

9.0

Crew

9.3

Food

8.9

Comfort

9.0

Boarding

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,101 reviews
STARLUX Airlines
9.0
Wonderful
188 reviews

Entertainment

9.0

Crew

9.3

Food

8.9

Comfort

9.0

Boarding

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,505 reviews
STARLUX Airlines
9.0
Wonderful
188 reviews

Entertainment

9.0

Crew

9.3

Food

8.9

Comfort

9.0

Boarding

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
744 reviews
STARLUX Airlines
9.0
Wonderful
188 reviews

Entertainment

9.0

Crew

9.3

Food

8.9

Comfort

9.0

Boarding

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Japan?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Japan. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • What are the cheapest airlines to fly from Ontario to Japan one-way?

    To fly one-way, consider booking your trip with Japan Airlines, which is currently one of the cheapest options available, starting at $393. Delta flights start at $404 while deals on Korean Air start at $414 one-way.

  • What are the most popular routes from Ontario to Japan?

    The most popular flight routes from Ontario to Japan are Ontario - Tokyo Narita, Ontario - Tokyo Haneda and Ontario - Osaka Kansai Intl.

  • Can I find deals for flights from Ontario to Japan that include hotel bookings?

    Yes. In addition to deals on Ontario to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Japan.

  • Can I find deals for business class flights from Ontario to Japan?

    Yes. Cheapflights offers flight deals from Ontario to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Japan?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Japan (average of $871). Flying from Ontario to Japan in December is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 8 airlines flying from Ontario to Japan

Discover the top 8 airlines that operate flights from Ontario to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$486Average$1,179FlexibilityNo cancel feeOn-time69%
ZIPAIRCheapest$591Average$778FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$660Average$1,145FlexibilityNo cancel feeOn-time79%
ANACheapest$686Average$1,050FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$712Average$966FlexibilityNo cancel feeOn-time71%
DeltaCheapest$895Average$1,148FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$966Average$1,430FlexibilityNo cancel feeOn-time85%
China AirlinesCheapest$967Average$1,192FlexibilityNo cancel feeOn-time70%

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